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Critical phenomena of the antiferromagnetic quantum phase transition in heavy fermions

Research Project

Project/Area Number 18740232
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Mathematical physics/Fundamental condensed matter physics
Research InstitutionKyoto University (2007-2008)
Osaka University (2006)

Principal Investigator

TABATA Yoshikazu  Kyoto University, 大学院工学研究科, 准教授 (00343244)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,650,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2006: ¥2,500,000 (Direct Cost: ¥2,500,000)
Keywords重い電子 / 量子相転移 / 臨界現象 / 中性子散乱実験 / SDW QCP / locally critical QCP / 量子多重臨界点
Research Abstract

重い電子系の基底状態が、通常金属と同じフェルミ液体から反強磁性秩序へと絶対零度で相転移する量子相転移の臨界現象を、典型的な重い電子系CeRu2Si2 の置換物質を実験対象にして調べ、複数の反強磁性相とフェルミ液体相が存在する場合の複雑な臨界現象を観測した

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (18 results)

All 2009 2008 2007 2006

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (15 results)

  • [Journal Article] Phase transition between the itinerant and the localized antiferromagnetic orders in Ce(Ru_<0.9>Rh_<0.1>)_2(Si_<1-y>Gey)_22007

    • Author(s)
      C. Kanadani, Y. Tabata, T. Taniguchi, S. Kawarazaki
    • Journal Title

      J. Magn. Magn. Mater Vol.310

      Pages: 357-358

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Phase transition between the itinerant and the localized f-electron states in heavy fermion antiferromagnet Ce(Ru_<0.9>Rh_<0.1>)_2(Si_<1-y>Ge_y)_22007

    • Author(s)
      Y. Tabata, C. Kanadani, R. Yamaki, T. Taniguchi, S. Kawarazaki
    • Journal Title

      Proceedings of the international symposium on topological aspects of critical systems and networks (World Scientific) Vol.166

      Pages: 12077-12077

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Phase transition between the itinerant and the localized antiferromagnetic orders in Ce(RuO.9RhO.1)2(Sil-yGey)22007

    • Author(s)
      C. Kanadani, Y. Tabata, T. Taniguchi, S. Kawarazaki
    • Journal Title

      Journal of Magnetism and Magnetic Materials 310

      Pages: 357-358

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 圧力下磁化測定から見た重い電子系Ce(Ru_<0.9>Rh_<0.1>)_2(Si_<1-y>Ge_y)_2 の局在遍歴相転移2009

    • Author(s)
      金谷親英, 斉藤敏明, 田畑吉計
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Final Research Report
  • [Presentation] 圧力下磁化測定から見た重い電子系Ce(Ru0.9Rh0.1(2(Si1-yGey)2の局在遍歴相転移2009

    • Author(s)
      金谷親英、斉藤敏明、田畑吉計
    • Organizer
      日本物理学会第64回年次大会(講演番号 : 27aPS-30)
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] 重い電子系Ce(Ru_<1-_x>Rh_x)_2(Si_<1-y>Gey)_2 の量子相転移2008

    • Author(s)
      田口裕健, 田畑吉計, 中村裕之, 金谷親英
    • Organizer
      日本物理学会2008年秋期大会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-21
    • Related Report
      2008 Final Research Report
  • [Presentation] 重い電子化合物Ce(Ru1-xRhx)2(Si1-yGey)2の量子相転移2008

    • Author(s)
      田口裕健、田畑吉計、中村裕之、金谷親英
    • Organizer
      日本物理学会2008年秋期大会(講演番号 : 21aPs-41)
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] 重い電子系Ce(Ru_<1-x>Rh_x)_2(Si_<1-y>Ge_y)_2 における2 つの異なる反強磁性相の競合2008

    • Author(s)
      田口裕健, 田畑吉計, 中村裕之, 大矢紫保, 谷口年史
    • Organizer
      日本物理学会第63回年次大会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Related Report
      2008 Final Research Report
  • [Presentation] 重い電子系Ce(Rul-xRhx)2(Sil-yGey)2における2つの異なる反強磁性の競合2008

    • Author(s)
      田口裕健、田畑吉計、中村裕之、大矢紫保、谷口年史
    • Organizer
      日本物理学会第63回年次大会(講演番号:23pPSA-31)
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] 重い電子系Ce(Ru_<1-x>Rh_x)_2(Si_<1-y>Ge_y)_2における量子二重臨界点の探索II2007

    • Author(s)
      大矢紫保, 田畑吉計, 金谷親英, 田口裕健, 谷口年史, 中村裕之
    • Organizer
      日本物理学会第62回年次大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Related Report
      2008 Final Research Report
  • [Presentation] 重い電子系Ce(Rul-xRhx)2(Sil-yGey)2における量子二重臨界点の探索II2007

    • Author(s)
      大矢紫保、田畑吉計、金谷親英、田口裕健、谷口年史、中村裕之
    • Organizer
      日本物理学会第62回年次大会(講演番号:21pPSA-103)
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] 重い電子反強磁性体Ce(Ru_<0.9>Rh_<0.1>)_2(Si_<1-y>Ge_y)_2における遍歴-局在一次相転移2007

    • Author(s)
      田畑吉計, 山木亮太, 金谷親英, 大矢紫保, 谷口年史, 河原崎修三
    • Organizer
      日本物理学会2007年春期大会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2007-03-19
    • Related Report
      2008 Final Research Report
  • [Presentation] 重い電子系Ce(Ru_<1-x>Rh_x)_2(Si_<1-y>Ge_y)_2 における量子二重臨界点の探索2007

    • Author(s)
      大矢紫保, 田畑吉計, 山木亮太, 金谷親英, 谷口年史, 河原崎修三
    • Organizer
      日本物理学会2007年春期大会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2007-03-18
    • Related Report
      2008 Final Research Report
  • [Presentation] 重い電子の反強磁性領域における遍歴・局在相転移2006

    • Author(s)
      金谷親英, 田畑吉計, 谷口年史, 河原崎修三
    • Organizer
      日本物理学会2006年秋季大会
    • Place of Presentation
      千葉大学西千葉キャンパス
    • Year and Date
      2006-09-26
    • Related Report
      2008 Final Research Report
  • [Presentation] 重い電子反強磁性体Ce(Ru_<0.9>Rh_<0.1>)_2(Si_<1-y>Ge_y)_2 における遍歴-局在相転移II2006

    • Author(s)
      山木亮太, 金谷親英, 大矢紫保, 田畑吉計, 谷口年史, 河原崎修三
    • Organizer
      日本物理学会2006年秋季大会
    • Place of Presentation
      千葉大学西千葉キャンパス
    • Year and Date
      2006-09-23
    • Related Report
      2008 Final Research Report
  • [Presentation] Phase transition between the itinerant and the localized antiferromagnetic orders in Ce(Ru_<0.9>Rh_<0.1>)_2(Si_<1-y>Ge_y)_22006

    • Author(s)
      C. Kanadani, Y. Tabata, T. Taniguchi, S. Kawarazaki
    • Organizer
      International Conference of Magnetism 2006
    • Place of Presentation
      Kyoto International Conference Hall
    • Year and Date
      2006-09-21
    • Related Report
      2008 Final Research Report
  • [Presentation] Neutron scattering study on the phase transition between the itinerant and the localized f-electron states in heavy fermion antiferromagnet Ce(Ru_<0.9>Rh_<0.1>)_2(Si_<1-y>Ge_y)_22006

    • Author(s)
      Y. Tabata, C. Kanadani, R. Yamaki, K. Yoshida, T. Taniguchi, S. Kawarazaki., Y. Uwatoko
    • Organizer
      International Conference of Magnetism 2006
    • Place of Presentation
      Kyoto International Conference Hall
    • Year and Date
      2006-09-21
    • Related Report
      2008 Final Research Report
  • [Presentation] Phase transition between the itinerant- and the localized-antiferromagnetic orders in heavy fermion Ce(Ru_<0.9>Rh_<0.1>)_2(Si_<1-y>Ge_y)_22006

    • Author(s)
      Y. Tabata, C. Kanadani, R. Yamaki, K. Yoshida, T. Taniguchi, S. Kawarazaki, Y. Uwatoko
    • Organizer
      QuBS2006 (ICM2006 Satellite Conference)
    • Place of Presentation
      Techno Community Squre Ricotti Tokai
    • Year and Date
      2006-08-28
    • Related Report
      2008 Final Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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